MAC 10
®
IQ
Fan Filter Unit
9
Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance
I n s t a l l a t i o n & S e r v i c e M a n u a l
Manual Control Mode:
In Manual control mode, the motor speed is set using the onboard potentiometer. Onboard potentiometer rotation is clockwise to
increase the motor output.
Analog Control Mode:
In ANALOG control mode, the motor output is set using an external 0-10 VDC demand signal.
Network Control Mode:
In NETWORK control mode, the motor output is set using MODBUS Register 2. Motor output is specified as a value from 0 to 100
representing a percentage of motor torque output. Each ENV1028 in a MODBUS network must be set to a unique address. The ad-
dress value is
set in binary format using the eight DIP switches of switch bank (S2)
. A maximum of 200 ENV1028 devices are
recommended per local area network(LAN). If an ENVIRCO ACC Control Console is the MODBUS master, then addresses should
be assigned within the address range supported by the Control Console. Address zero should not be used as it is reserved for global
commands. Address switch settings are only checked by the ENV1028 at power-up. Power must be cycled (OFF/ON) before any
changes take effect.
1
2
ON
ADE02
1
3 4 5 6 7 8
O
N
2
Control Mode
DIP Switches
S1
Addess DIP Switches
S2
Note: Network mode can be configured using either DIP switch setting shown above. DIP switch pictorials are for
reference and may be labeled differently by the manufacturer.
Registers relevant to this mode (see chart on page 11):
•
Register 1 “Start/Stop” (R/W)
– To enable motor, write a value of 1; To disable motor, write a value of 0
•
Register 2 “Motor Set Speed” (R/W)
– Motor Target speed value. Values may be written from 0 to 100
•
Register 6 “RPM” (R)
– Motor RPM. Read from the motor
•
Register 12 “Actual Motor Speed Instruction” (R)
– Speed control signal applied to the motor by the ENV1028.
(R/W) = Read/Write, (R) = Read Only
Example of binary S2 switch settings
1
2
3
4
5
6
7
8
ON
DIP
1
1
2
3
4
5
6
7
8
ON
DIP
11
1
2
3
4
5
6
7
8
ON
DIP
21
1
2
3
4
5
6
7
8
ON
DIP
2
1
2
3
4
5
6
7
8
ON
DIP
12
1
2
3
4
5
6
7
8
ON
DIP
22
1
2
3
4
5
6
7
8
ON
DIP
3
1
2
3
4
5
6
7
8
ON
DIP
13
1
2
3
4
5
6
7
8
ON
DIP
23
1
2
3
4
5
6
7
8
ON
DIP
4
1
2
3
4
5
6
7
8
ON
DIP
14
1
2
3
4
5
6
7
8
ON
DIP
24
1
2
3
4
5
6
7
8
ON
DIP
5
1
2
3
4
5
6
7
8
ON
DIP
15
1
2
3
4
5
6
7
8
ON
DIP
25
1
2
3
4
5
6
7
8
ON
DIP
6
1
2
3
4
5
6
7
8
ON
DIP
16
1
2
3
4
5
6
7
8
ON
DIP
26
1
2
3
4
5
6
7
8
ON
DIP
7
1
2
3
4
5
6
7
8
ON
DIP
17
1
2
3
4
5
6
7
8
ON
DIP
27
1
2
3
4
5
6
7
8
ON
DIP
8
1
2
3
4
5
6
7
8
ON
DIP
18
1
2
3
4
5
6
7
8
ON
DIP
28
1
2
3
4
5
6
7
8
ON
DIP
9
1
2
3
4
5
6
7
8
ON
DIP
19
1
2
3
4
5
6
7
8
ON
DIP
29
1
2
3
4
5
6
7
8
ON
DIP
10
1
2
3
4
5
6
7
8
ON
DIP
20
1
2
3
4
5
6
7
8
ON
DIP
30